The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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Domestic pigs average a top speed of about 11 miles per hour.
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The male seahorse carries babies and 'gives birth' to them instead of the female.
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Gorillas can catch human colds and other illnesses.
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Sharks have been on the planet longer than trees.
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The Basenji dog is the only dog that is not able to bark.
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